# CVE-2018-1000544: ruby-zip: rubyzip gem rubyzip version 1.2.1 and earlier contains a Directory Traversal vulnerability in Zip::File component tha...

CVE-2018-1000544 is fixed in ruby-zip on 1 platform by ruby-zip 1.2.1-1.1~build0.18.04.1 (version 1.2.1-1.1~build0.18.04.1), released June 26, 2018. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2018-1000544
- Priority: Routine
- CVSS: n/a (Medium)
- EPSS: 0.0434
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 26, 2018

## Description

rubyzip gem rubyzip version 1.2.1 and earlier contains a Directory Traversal vulnerability in Zip::File component that can result in write arbitrary files to the filesystem. This attack appear to be exploitable via If a site allows uploading of .zip files , an attacker can upload a malicious file that contains symlinks or files with absolute pathnames "../" to write arbitrary files to the filesystem..

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-zip Ubuntu 18.04.6 LTS (bionic) | 1.2.1-1.1~build0.18.04.1 | [ruby-zip 1.2.1-1.1~build0.18.04.1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-ruby-zip-1.2.1-1.1-build0.18.04.1.md) | Jun 26, 2018 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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